Bosporus n. (Written also Bosphorus) A strait or narrow sea between two seas, or a lake and a seas; as, the Bosporus (formerly the Thracian Bosporus) or Strait of Constantinople, between the Black Sea and Sea of Marmora; the Cimmerian Bosporus, between the Black Sea and Sea of Azof.
... is, to my mind, most captivating; but space forbids that I should enlarge on it, and on many other points of interest in this eventful voyage. I shall therefore pass over the Dardanelles and the Bosporus, leaving the great and classic Stamboul itself behind untouched, and transport the reader at once to one of those "touches of nature" which "make the whole ... — In the Track of the Troops • R.M. Ballantyne